如何使用Spring boot操作mysql数据库(2)-木庄网络博客

LiveChannel.java

package com.xugaoxiang;import org.springframework.beans.factory.annotation.Autowired;import javax.persistence.Entity;import javax.persistence.Id;/**
 * Created by djstava on 10/09/2017.
 */@Entitypublic class LiveChannel {
 
    @Id
    @Autowired
    private Integer id;    // 频道名称中文
    private String name_chn;    // 频道名称英文
    private String name_eng;    // 频道url
    private String url;    // 频道是否需要播放广告
    private Boolean hasAds;    public String getName_chn() {        return name_chn;
    }    public void setName_chn(String name_chn) {        this.name_chn = name_chn;
    }    public String getName_eng() {        return name_eng;
    }    public void setName_eng(String name_eng) {        this.name_eng = name_eng;
    }    public String getUrl() {        return url;
    }    public void setUrl(String url) {        this.url = url;
    }    public Boolean getHasAds() {        return hasAds;
    }    public void setHasAds(Boolean hasAds) {        this.hasAds = hasAds;
    }
}

上面实体类包含直播频道的一些信息。

接口实现

创建LiveChannelRepository.java,继承自JpaRepository,其中的Interger表示的是id的数据类型

package com.xugaoxiang;
import org.springframework.data.jpa.repository.JpaRepository;/**
 * Created by djstava on 10/09/2017.
 */public interface LiveChannelRepository extends JpaRepository<LiveChannel,Integer> {}

操作数据库

创建LiveController,这里设计了一个RestfulAPI，/live，返回的是数据库中所以的直播列表。

package com.xugaoxiang;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.web.bind.annotation.GetMapping;import org.springframework.web.bind.annotation.RestController;import java.util.List;/**
 * Created by djstava on 10/09/2017.
 */@RestControllerpublic class LiveController {
    public LiveController() {
    }    @Autowired
    private LiveChannelRepository liveChannelRepository;    @GetMapping(value = "/live")    public List<LiveChannel> getLiveChannel() {        return liveChannelRepository.findAll();
    }
}